The Absence of Interspecific Host Discrimination in Asobara Tabida Nees and Leptopilina Heterotoma (Thomson), Coexisting Larval Parasitoids of Drosophila Species

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Abstract
The primary, solitary parasitoids Asobara tabida Nees (Braconidae: Alysiinae) and Lepto- pilina heterotoma (Thomson) (= Pseudeucoila bochei Weld): Eucoilidae) are sympatric, show seasonal overlap and share the same hosts, viz. larvae of Drosophila species. Discrimination between unparasitized hosts and hosts parasitized by the other species was studied. No differences were found in their behaviour towards the two kinds of hosts: these were accepted equally well for parasitization.

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